Nut-lock.



PATENTED FEB. 25, 1907.

J. J. KING.

NUT LOCK.

- APPLICATION FILED 001'. 2a, 1906.

JOSEPH J. KING, OF BARLOW, OREGON.

NUT-LOCK.

Specification of Letters Patent.

Patented Feb. 26, 1907.

Application filed October 28, 1906. Serial No. 340,173.

To (ZZZ who/"rt it III/(Ly concern.-

Be it known that I, JosEPH J. KING, a citizen of the United States, residing at Barlow, in the county of Clackamas and State of Oregon, have invented certain new and useful Improvements in N ut-Locks and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in nut-locks, and more particularly to that class adapted to be used in connection with track-rails; and my object is to provide a device of this class which will securely lock the nut upon thebolt and prevent the same from being casually removed from the bolt.

A further object is to provide a locking mechanism which can be readily moved into or out of engagement with the nut, as desired, so that the nut will be left free to turn onto or off of said bolt.

Other objects and advantages will be hereinafter referred to, and more particularly pointed out in the claims.

In the accompanying drawings, whichare made a part of this application, Figure 1 is a sectional view through a railroad-rail and fish-plate, showing my improved nut-lock secured thereto. Fig. 2 is a side elevation thereof, and Fig. 3 is a perspective view of the locking mechanism removed from the bolt.

Referring to the drawings, in which similar reference-numerals designate corresponding parts throughout the several views, 1 indicates a rail such as is commonly employed in connection with railway-tracks, and 2 indicates fish-plates such as are commonly used in securing the ends of the rails together.

Disposed through the web of the rail and the fish-plates 2 is a bolt 3, upon the threaded end of which is disposed a nut 4, the bolt and nut being employed to lock the fishplates to the rails, and in order to prevent the nut from being casually removed from the bolt, as by the jar of trains passing over the rails, I have provided a plate 5, which is preferably rectangular and provided with an opening 6, through which is adapted to take the bolt 3, the plate 5 being disposed upon the bolt 3 before the nut 4 is directed thereon, thereby disposing the plate adjacent the outer face of one of the fish-plates and having the lower edge 7 thereof adjacent the base-section 8 of the fish-plate 2, so that the plate 5 will be prevented from rotating around the nut by contacting with the basesection 8.

Extending at right angles to the plate 5 and integral with the lower edge thereof and at one end of the plate is an ear 9, to the upper surface of which is pivotally secured a spring-actuated locking-arm 10, the free end 11 of said arm engaging the base-section 8, while the body portion 12 thereof is directed upwardly, so that when the locking-arm is disposed parallel with the plate 5 one face of the nut 4 will rest upon the body portion 12, and by which means the nut is prevented from casual rotating on the bolt.

A V-shaped depression 13 is formed at the longitudinal center of the body portion 12, so that when the nut 4 is turned to the position shown by dotted lines in Fig. 2 the V-shaped depression will engage the corner of the nut and hold the same against rotation. The locking-arm 10'is pivotally secured to the ear 9 by disposing a bolt or rivet 14 through the arm and ear, the object in pivotally securing the arms to the ear being to allow the arm to be swung from beneath the nut, so that said nut can be readily directed onto or off the bolt without interference by the lockingarm, and it will be understood that as soon as the nut has been properly adjusted upon the bolt that the locking-arm 10 can be swung upon the ear 9 and disposed below the nut or disposed from beneath the nut when it is desired to remove the same from the bolt. To insure that the arm 10 will be firmly held. below the nut 4 when desired, Iv

dispose a cotter-pin 15 or other locking means through an opening 16 in the lockingarm 10 and ear 9, thereby preventing casual removal of the locking-arm from beneath the nut.

Although I provide means for removing the locking-arm from beneath the nut when the same is being turned onto or off the bolt, it will be clearly understood that, if desired, the arm can be fixed to the ear 9 and the nut directed onto or off the bolt by depressing the locking-plate at each turn of the nut.

What I claim is 1. The combination with a rail, fish-plates on said rail, a bolt disposed through said rail and fish-plates and a nut for said bolt; of a locking-plate having an opening therein to receive said bolt, an ear integral with and at right angles to the lower edge of said plate, a locking-arm having one of its ends pivotally secured to said car and the opposite end thereof adapted to be disposed into engagement with the fish-plate, means to hold the locking-arm below the nut, an upwardly-extending portion between the ends of said locking-arm adapted to engagetlie face of said nut and prevent the casual rotation thereof, and a V-shaped depression at the center of said upwardly-extending portion adapted to receive the corners of said nut.

2. The combination with a rail having [ishplates thereon, a bolt directed through said fish-plates and-rail and a nut on said bolt, of a rectangular plate, having an opening to receive said bolt, an ear integral with the lower edge of said plate and at one end thereof, the ear being at right angles to the plate, a locking-arm pivotally secured to said ear and means to lock said arm below the nut whereby the nut will be held against casual rotation.

3. The combination with a bolt and a nut therefor; of a plate having an opening to receive said bolt, an ear integral with one edge of said plate and at right angles to the plate, a locking-arm pivotally secured to said ear and a pin disposed through openings in said locking-arm and ear to hold said locking-arm into engagement with the nut whereby casual rotation of said nut will be prevented.

In testimony whereof I have signed my name to this specification in the presence of 3 5 two subscribing witnesses.

JOSEPH J. KING. Witnesses:

W. W. JEssE, BESSIE SHEPPARD. 

